Reference detecting device of automatic drilling and riveting system of airplane components and detecting method thereof

Abstract

The invention relates to a reference detecting device of an automatic drilling and riveting system of airplane components and a detecting method thereof. The detecting method comprises the following steps of: acquiring information of a reference profile by a 2D laser displacement sensor and a distance sensor, establishing a parameter space of a reference hole center coordinate by applying a least square method, then realizing transformation from a reference hole boundary space domain to the reference hole center coordinate by applying generalized Hough transformation, fitting and calculating a reference center position, and realizing detection of an actual position of the reference, thus realizing determination of the actual position for the processing reference of the automatic drilling and riveting system so as to determine the deviation between the theoretical position and the actual position of the reference. The positions of points to be preprocessed on a product are compensated and corrected, so that the manufacture and installation errors are eliminated, and the drilling and riveting accuracy is increased; and the detecting method is simple, the solving speed is high and the online detection of the reference can be realized.

Description

technical field [0001] The invention relates to a reference detection device and a detection method of a drilling and riveting system, in particular to a reference detection device and a reference detection method of an automatic drilling and riveting system for aircraft parts. Background technique [0002] At present, in the field of aerospace manufacturing, the application of aircraft flexible assembly technology has become the mainstream development trend of digital manufacturing in domestic and foreign aircraft manufacturing industries. Since the current assembly process of aircraft structural parts is dominated by mechanical connections, mechanical connections have brought about a large number of hole-making problems. In order to meet the long-life requirements of aircraft, it is necessary to solve the technical problems of precision hole-making technology. Therefore, robot precision hole-making technology has become an aircraft flexible assembly technology. An importan...

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Problems solved by technology

[0013] Although the maximum detection error of the above method does not exceed 0.01mm, which meets the requirements of rapid detection of small group holes, and can also be applied to other occasions that require high efficiency and non-contact, but because the image processing takes up a large amount of system memory, image transmission and processing The speed is slow, which is not conducive to the online detection of the benchmark

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